50 Centhas reportedly made an impressive £5.5 million in one day on Gamu Nhengu to his G-Note record label, took to Twitter to promote H&H Imports, urging his followers to invest.
Fiddy is said to have helped the 'penny stock' firm boost their shares by 290 per cent, after tweeting about the Florida based company on the social-networking site.
The Candy Shop hitmaker tweeted about H&H Imports, stating: "You can double your money right now. Just get what you can afford. They are no joke get in now."
According to the New York Post, Fiddy's tweets increased his shares in the company to a value of $8.7m (£5.5m).
It is thought that Mr. Cent, real name Curtis Jackson, owns a total of 30 million shares in the company.